Explanation

Pluto has snow-capped mountains covered in methane frost, and although they look similar to snowy mountain chains on Earth

Discovered: February 18, 1930

Discoverer: Clyde Tombaugh

Moons: Charon, Nix, Styx, Kerberos, Hydra

It is the ninth-largest and tenth-most-massive known object to directly orbit the Sun.

It is the largest known trans-Neptunian object by volume

AGM 30.4.23

ND27-7-2023

Explanation

The fluid in your lead-acid battery is called Electrolyte.

It's actually a mixture of sulphuric acid and water.

Explanation

Explanation

Straw, camphor, alcohol, petrol, diesel etc. catch fire easily to release heat energy and light energy.

So, these are examples of combustible substances.

Explanation

An optical fiber is a flexible,

transparent fiber made by drawing glass  or plastic

To a diameter slightly thicker than that of a human hair.

Explanation

• The water potential of pure water is zero (0).
• It is taken as a standard reference point.
• Pure water has no dissolved solutes.
• Chemical formula: H2O
• Molar mass: 18.01528(33) g/mol
• Melting point: 0.00 °C (32.00 °F; 273.15 K) [b]
• Boiling point: 99.98 °C (211.96 °F; 373.13 K)

Last updated by NS on 20-April-2026

Explanation

Venus orbits the Sun anti-clockwise but spins clockwise on its axis.

This unique rotation is known as retrograde rotation.

Explanation

Pneumonia is often caused by Streptococcus pneumoniae.

It is a type of bacteria that leads to lung inflammation and infection.

It affecting breathing and oxygen intake.

Explanation

Dengue viruses are spread to people through the bites of infected Aedes species mosquitoes

The mosquito becomes infected when it takes the blood of a person infected with the virus.

After about one week, the mosquito can then transmit the virus while biting a healthy person.24

Explanation

When outside temperatures are low and there is moisture in the air, small ice crystals are formed.

On their own they are tiny, but when they collide they stick to each other and make snowflakes.

When lots of these particles join together they get heavier and once they are heavy enough they fall to the ground as snow.